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Hello all, How can I test my ethernet port to confirm that it is "dead" or "alive"? I have been having problems in making a connection with my Linksys router; my Network panel lists the ethernet status as follows: "The Cable for Built-in Ethernet is not plugged in." I fear the port itself may...

Hello, A strange thing happened this morning: I am unable to run a number of system applications, including Safari, the Installer and System Update. The apps attempt to open, then nothing; no error message, just an indicator in my dock saying that the app is open, but when I click there...